Anyone who ever played ‘shop’ as a child, trading real or imaginary objects over a table, will experience a thrill of recognition at Fiasco Theater’s stripped-back take on Sondheim and James Lapine’s ode to and deconstruction of storytelling. That’s what we get for the swiftly evoked bakery, and there’s a dressmaker’s dummy standing in for a tree, a feather duster and Christmas tree ornament for a golden egg-laying hen, a ladder for a mighty tower, a wooden crate for a throne, shadow play during the action sequences, and flapping pieces of paper as the ever-helpful birds.